baber/WOPTO huggingface dataset:
Patent JO-2701-B1 (JO)
Title: Compounds
Inventor: MAHMOOD AHMED
Filed: 2007-12-17
Granted: 2013-03-03
Abstract: The invention relates to compounds of formula (I) wherein one of R5 and R6 is hydrogen or R2 and the other is (a) processes for their preparation, pharmaceutical compositions containing them and their use in the treatment of conditions or disorders which are mediated via the S1P1 receptor.
Patent JO-3293-B1 (JO)
Title: Sustainable system for treating water bodies affected by bacteria and microalgae at low cost
Inventor: FISCHMANN T FERNANDO
IPC: E04H4/12
Filed: 2017-12-31
Granted: 2018-09-16
Abstract: A sustainable method and system for treating and maintaining bodies of water at low cost for low density recreational use is disclosed. A system of the invention generally includes at least one containing means, at least one coordination means, at least one chemical application means, at least one non-intrusive mobile suction means, and at least one filtration means. The coordinating mean scan receive information regarding water quality parameters that are controlled, and can timely activate the processes necessary to adjust the water quality parameters within their respective limits. The disclosed methods and system filter only a small fraction of the total water volume, up to 200 times less per day than the flow filtered by conventional swimming pool filtration systems. The disclosed methods and system also use less chemicals, up to 100 times less than conventional swimming pool water treatment systems. The methods and system of the present invention can be used to treat recreational water bodies affected by bacteria and microalgae and provide sustainable methods for producing water that complies with bacteriological and physicochemical requirements for recreational water, as set forth by governmental regulatory agencies such as the Environmental Protection Agency (EPA), for bathing with full body contact.
Patent KR-790001250-B1 (KR)
Title: Double lock
Inventor: NIGANISI YOSIDAGA
Filed: 1974-01-01
Granted: 1979-09-17
Abstract: A double lock to improve burglarproof qualities was composed of a hook part(3) operated by rotating handle(6), operating part(8) having a number of projecting parts(27) and multi-restriction-cancelling parts(10) whose front face(13) had visible and invisible numbers written between projecting parts (27) and a depression(12) for preventing the intersection of projecting parts(27).
Patent KR-790001990-B1 (KR)
Title: Production of metal strip from powder
Inventor: HIELDSEND T
IPC: B22F5/00
Filed: 1974-05-03
Granted: 1979-12-30
Abstract: The titled method relates especially to the production of steel strip by the roll compaction of metal powder.  This method is provided for the continuous production of metal strip which includes compacting powder to form a green strip, feeding the green strip to a sinter furnace, supporting the strip by a gaseous cushion as it passes through the sinter furnace and maintaining constant shrinkage of the strip as it passes through the sinter furnace.
Patent KR-810001000-B1 (KR)
Title: Method of producing a slide fastener
Inventor: AKASHI SHUNJI
IPC: A44B19/42
Filed: 1977-07-08
Granted: 1981-08-29
Abstract: Individual slide fasteners from a pair of continuous slide fastener stringers having a pair of stringer tapes (1) are made of a fabric including thermoplastic synthetic fibers and a slide fastener chain (f) including a pair of interengaged rows of fastener elements is mounted on and along the confronting edges.  An element-free gap (4) is provided in the continuous slide fastener stringers, simultaneously with the gap providing step.  A top end stop (5) is mounted on the cut end portion of the continuous slide fastener stringers (e) while at rest at a second station located downstream of the first station.
Patent KR-810001452-B1 (KR)
Title: Process for preparing codeine from dihydrocodeinone
Inventor: GREW E
IPC: C07D489/02
Filed: 1977-08-25
Granted: 1981-10-22
Abstract: The dehydrocodeines (I; X = halogen) were prepd. by reduction of dehydrocodeinones which was prepd. by alkali-treating of II.  The II was prepd. by reaction of thebain with hydrohalic acid in the presence of reaction compds. such as C1-6 aliphatic carboxylic acid, ethanolable carbonyl-contg. compd., chloral hydrate, aromatic aldehyde and ketone.  Thus, thebain was brominated with HBr in CH3COOH to give II(X = Br).  The bromination was repeated under various conditions.  II(X = Br) was treated with NaOH to give codeinone.  The codeinone and NaBH4 gave codeine(I; X = Br).
Patent KR-790000260-B1 (KR)
Title: Production of allantoin
Inventor: EOM IK HWAN
Filed: 1978-03-08
Granted: 1979-04-13
Abstract: Allantoin(I), a useful raw material for medicine and cosmetics, was prepd. by H2O2 oxidn. of glycoluril (II), obtained by the reaction of glyoxal with urea. Thus, 14g II was dissolved in H2O, adjusted to pH 5.5-6 and cooled to 60-65≰C to give oversaturated II soln. AgNO3 and H2O2 was added again to the resulting soln. to give 76% I.
Patent KR-790001307-B1 (KR)
Title: Process for preparing 5,9-b-2-disubstituted 2-tetrahydrofurfuryl-6,7-benzomorphans
Inventor: WALTHER G
Filed: 1979-08-10
Granted: 1979-09-24
Abstract: Title compds.[I; R = H, MeOH, Acetyl, R1 = methyl or phenyl  useful as tranguilizer, were prepd. by reduction of carbonamide or thioamide of compd.[1V; Y = oxygen or sulfur .  Thus, (1R, 5R, 9S)-(-)-2'-hydroxy-5-phenyl-9- methyl-6,7-benzomorphan was mixed with calcium carbonate and D,L-tetrahydrofuran-2-carbonic acid chloride.  The product was stirred and treated with methylenechloride and n-butanol solution to give (-)-2-(D-tetrahydrofufuryl) - (1s,5s,9R)-2'-hydroxy-5,9-dimethyl-6,7-benzomorphane.
Patent KR-830002315-B1 (KR)
Title: 새도우 마스크 지지구조체
IPC: H01J29/02
Filed: 1980-01-11
Granted: 1983-10-22
Abstract: 내용 없음.
Patent KR-840002484-B1 (KR)
Title: Method for restoring airseal on turbine blade
Inventor: ARRIGONI JOHN PETER
IPC: F01D25/00
Filed: 1980-02-22
Granted: 1984-12-31
Abstract: The method is for restoring airseals on gas turbine blades and vanes. A worn or damaged airseal is removed by abrasive belt grinding perpendicular to its length to create a stub. Then a piece of material is joined to the stub, as by welding. Next the airseal weldment is contoured using abrasive belting, perpendicular to the weldment length. The repair is for components having two airseals of different dimensions. A single two-position fixture is usable to remove old airseals and to refinish airseal weldments. Refinishing is accomplished with a contoured belt; the contour is chosen to be intermediate, but within the tolerance of, the contours of the first and second airseals. As a result, airseals are economically restored in short runs.
Patent KR-850000119-B1 (KR)
Title: Control method of electronic engine
Inventor: HURUHASHI TOSHIO
IPC: F02D41/00
Filed: 1980-04-16
Granted: 1985-02-23
Abstract: A process for electronically controlling an internal combustion engine employs a plurality of engine controlling programs to be executed by a central processing unit classified into a number of task programs in accordance with processing functions of the CPU. The periods at which the task programs are to be activated are determined in consideration of the influential significance of the tasks in controlling the engine, whereby the task programs are executed in accordance with the activation periods thereof under supervision of a program for monitoring the plurality of the engine control programs.
Patent KR-840000817-B1 (KR)
Title: Sintered aggregates
Inventor: FUNDAL ERLING
IPC: C04B18/08
Filed: 1980-12-24
Granted: 1984-06-15
Abstract: Porous sintered aggregate is prepd. from a raw mixture comprising (A) fine clay-like material comprising 35-70 wt.% SiO2, 15-35 wt.% Al2O3, 3-30 wt.% Fe oxide calcd. as Fe2O3, 1-10 wt.% CaO and 1.15 wt.% C and (B) fine calcaceous material consisting predominantly of CaCO3. The wt. ratio of total CaO over total Al2O3 in the mixture is 0.35-1.00, of total SiO2O3 is above 1.0. The mixt. is preheated at 850oC until the calcaceous materials are calcined and the carbon is oxidized. The preheated mixt. is then sintered in a neutral to slightly oxidizing atmos. at 1050-1250oC.
Patent KR-840001944-B1 (KR)
Title: Toothpaste composition
Inventor: HARVEY KENNETH
IPC: A61K8/84
Filed: 1981-06-02
Granted: 1984-10-26
Abstract: A toothpaste consists of 35 wt.% sorbitol, 45-85 wt.% liquid that contains at least 25 wt.% water (based on toothpaste), 3 wt.% polyvinylpyrrolydon, and 3-10 wt.% vehicle. Thus, a toothpaste was prepd. contg. sorbitol (70%) 16.0, polyvinylpyrrolydon 6.10, Na CM cellulose 1.10, Na saccharine 0.20, TiO2 0.40, Na monofluorophosphate 0.80, anhydried alumina 10.0, Na alumino silicate 20.0, Na lauryl sulfate 1.77, aroma 1.10, and H2O 42.63%. The dryness of a toothpaste that contains sorbitol and a gelation agent as moisture conservation materials is thus diminished.
Patent KR-850001479-B1 (KR)
Title: Electrostatic printing and copying
Inventor: FOTLAND RICHARD A
IPC: G03G13/00
Filed: 1981-08-21
Granted: 1985-10-10
Abstract: An electrostatic transfer printing system is arranged so that a static image is formed on a cylindrical dielectrical member by means of a glow discharge ion source. The image is then toned and pressure- transferred to a receptor, such as a sheet of paper (81), which is passed between the cylindrical dielectric member and a transfer roller (73,83). Scraper blades may be included to remove residual toner form the cylindrical dielectric member and the transfer roller. An arragement may also be included to erase any latent, residual, electrostatic image on the cylindrical dielectric member.
Patent KR-860000332-B1 (KR)
Title: A antenna
Inventor: BESSUDAN SHINICHI
IPC: H01Q19/17
Filed: 1981-08-27
Granted: 1986-04-09
Abstract: An offset feed antenna system comprises horns(1), for radiating radio waves in different bands, which are arranged around the axis of a main reflector(3) and further comprises a sub-reflector(2). The waveguide system also prevents beam separation when circularly polorized waves are used with a non-symmetric sub-reflector. An expression shows the cross-polarization(C) is reducable to zero with the suitable choice of beam radii, diameter and focal lengths of the focussing reflectors(9,12), and the angles(0) between the waves incident on these reflectors.
Patent KR-860000318-B1 (KR)
Title: Treatment of computer paper for anti-counterfeit i.d.card
Inventor: LEE WON-KOL
IPC: B41M3/00
Filed: 1981-11-18
Granted: 1986-04-09
Abstract: A method for printing paper that is used for computer printouts, prints clearly has good type adherence, and a printed layer and prevents photograph slippage. This method comprises (1) making space for printing an item; (2) coating the printing paper with a solution composed of poly vinyl alcohol powders(5g), toluene(50cc), and aceton(100cc); (3) drying the printing paper; (4) writing an item by computer; (5) coating the photographic space with an exposure solution to print a photograph. In the treatment of the computer paper, mixing ratios of poly vinyl alcohol, toluene, and acetone are very important.
Patent KR-900005097-B1 (KR)
Title: Hydrocracking catalyst and hydrocracking process
Inventor: RAPIERE REN B
IPC: C10G47/18
Filed: 1983-05-18
Granted: 1990-07-19
Abstract: A hydrocrcking catalyst comprises (i) a hydrogenation component (pref. a meta of Gp. Va, VIa or VIII), and (ii) an acid component comprising a zeolite of SiO2:Al2O3 ratio at least 50:1 with large pores. The catalyst is used for hydrocracking oils, e.g. reduced crudes, vacuum residue, coker gas oils, cycle oils, vacuum gas oils (VGO's), and oils from coal, shale and tar sands. Selectivity for distillate prds. of b. pt. above about 150 deg.C is increased by using component (ii).
Patent KR-890000222-B1 (KR)
Title: Mounting apparatus for chip type electronic parts on circuuit boards
Inventor: TAKAHASHI DETSUO
IPC: B23P21/00
Filed: 1984-03-10
Granted: 1989-03-10
Abstract: The mounting jig is used for inserting electronic components into a printed circuit board.  The jig consists of pallets (4), a feed unit (6A, 6B), an assembly head mechanism (11) and a component positioning mechanism (21).  The pallets are attached on an endless band mechanism and moved intermittently.  The feed unit is provided on at least one side of a horizontal travel path of the pallet and the head mechanism takes up a component at a predetermined position of the pallet and mounts the component on a P.C.B. The component positioning mechanism positions the chip properly on the pallet prior to arrival of the pallet to its position.
Patent KR-860001164-B1 (KR)
Title: A method and apparatus of manufacturing rubber boots
Inventor: JONG IL-BOM
IPC: A43D25/06
Filed: 1984-05-17
Granted: 1986-08-20
Abstract: Rubber boots are manufactured by soaking the die cast comprising body (2) and bottom (3) having concave-convex surface (4) in the latex solution to form the latex film, adhering the core plate (9) on the surface film of the sole, soaking the surface of (9) into the latex solution to form one body of latex and (9), and drying and vulcanizing the film. (9) is manufactured from natural or synthetic linen by penetrating the latex adhesive comprising 50 % NBR latex, 10 - 15 % benzene, and 30 % natural latex.
Patent KR-860001254-B1 (KR)
Title: Process for preparing hyaluronic acid
Inventor: CHONG GYO-MIN
IPC: C12P19/54
Filed: 1984-08-29
Granted: 1986-09-01
Abstract: Hyaluronic acid is prepd. for use as a skin protection agent. A microorganism producing hyaluronic acid is cultured in culture medium containing N-acetyl tannic acid and germanium oxide. Streptococcus equi ATCC 9527 is cultured 24 hrs at 37 ≰C in 1 liter of culture medium containing 3% of glucose, 0.1% of N-acetyl tannic acid, 0.5% of yeast extract, 1.5% of peptone, 0.01 g/l of germanium oxide, pH 7.5. This culture, via extraction gives 5 g/l of hyaluronic acid.
Patent KR-860001975-B1 (KR)
Title: Turning device for railroad car
Inventor: CHOE JAE-KWAN
IPC: B61D49/00
Filed: 1984-11-21
Granted: 1986-11-07
Abstract: A lower table is fixed on the lower portion of one pair of cross beams. Multiple driving bearings are established between the lower and upper tables. A cover is fixed on the lower table to make one body with the table. One pair of cylinder guides, on which a fixing rod and a stopper are supported by a spring, are fixed on the upper table. An oil pressure cylinder is established on this cylinder guide and a piston rod is fixed on the upper table. This turning device for a railroad car enables the direction to be changed at one's pleasure.
Patent KR-930002721-B1 (KR)
Inventor: WIBLIN WAYNE T
IPC: G01D5/249
Filed: 1985-02-19
Granted: 1993-04-09
Abstract: 내용 없음.
Patent KR-910002155-B1 (KR)
Inventor: VAUGHN STEVEN T
IPC: H04N5/95
Filed: 1985-08-03
Granted: 1991-04-06
Abstract: 내용 없음.
Patent KR-940000814-B1 (KR)
Title: Control of disalt in alpha-sulfofatty acid ester surfactants
Inventor: PIORR ROBERT
IPC: C11D1/28
Filed: 1985-09-03
Granted: 1994-02-02
Abstract: In light colored surfactants produced by sulfonation of fatty acid alkyl esters with less than 2 moles of SO3 per mole of fatty acid alkyl ester and subsequent work-up of the crude sulfonate in aqueous medium to form salts, the content of  alpha -sulfofatty acid disalts is regulated and reduced by transesterifying the sulfonation product before its treatment with an aqueous medium with at least about 0.5 mole equivalent of an alcohol, based on the SO3 which is not for alpha -sulfonation.
Patent KR-900001242-B1 (KR)
Title: Semiconductor ic with circuit for internal circuit test
Inventor: SAITO TADAHIRO
IPC: G01R31/28
Filed: 1986-02-17
Granted: 1990-03-05
Abstract: The circuit has an oscillating circuit for generating a basic clock signal for operating an internal circuit, when the internal circuit is operated in a usual mode.  A pair of terminals (Toscin, Toscont) are connected to the input and output sides of the oscillating circuit, an external oscillator being connected between the terminals when the internal circuit is operated in the usual mode.  A test circuit operates the internal circuit in a test mode.  It has a switching circuit which selectively closes a first signal path supplying the clock through the frequency divider in a usual mode or a second signal path supplying an external clock signal for testing.
Patent KR-880001240-B1 (KR)
Title: Preparation method of brassinolide derivatives
Inventor: JO KWANG-YON
IPC: C07J9/00
Filed: 1986-03-04
Granted: 1988-07-12
Abstract: Brassinolide derivs. of formula (I) are prepd. by reacting compds. of formula (II) with a reducing agent, i.e. borane to obtain compds. of formula (III), and removing protecting gps. in 1,2-position of (III).  prepn. of (III) comprises dissolving (II) in an inert solvent, adding the reducing agent, agitating sufficiently and adding a thin alkaline solution and a hydrogen peroxide.  In the formulas, R is (a) , (b) or (c).  (I) have potent, vegetative effects in the growth of vegetation.
Patent KR-930009011-B1 (KR)
Inventor: MATSUTANI SHIGERU
IPC: C07D471/04
Filed: 1986-09-25
Granted: 1993-09-18
Abstract: 내용 없음.
Patent KR-940002940-B1 (KR)
Title: Process for preparing pharmacentical compositions improving oxygenation of the brain
Inventor: LEVY JEAN-CLAUDE
IPC: A61K31/135
Filed: 1986-11-05
Granted: 1994-04-09
Abstract: 2,2-Bisphenoxy-dimethyl-aminoethane to improve brain disfunction.
Patent KR-910000566-B1 (KR)
Inventor: ABE TSUTOMU
IPC: F23D14/82
Filed: 1986-11-19
Granted: 1991-01-26
Abstract: 내용 없음.
Patent KR-900006984-B1 (KR)
Title: Compressing and grinding apparatus
Inventor: ATAKA TAKASHI
IPC: B31B21/60
Filed: 1986-12-06
Granted: 1990-09-25
Abstract: An outer cylinder has an inner surface which is similar to that of a mortar. A screw has a spiral screw thread and extends through the cylinder. The cylinder and screw define between them a space having a gradually decreasing cross-sectional area. In this area the material is compressed at a pressure of 1 to 100 tons per sq.cm. and heated at a temperature of 150 to 600 degree. It is then ground until its structure is destroyed.
Patent KR-950008311-B1 (KR)
Inventor: KIMURA FUMIO
IPC: A01N47/36
Filed: 1987-07-01
Granted: 1995-07-27
Abstract: 내용 없음.
Patent KR-900003176-B1 (KR)
Title: Electron gun heater in cathode ray tube
Inventor: PARK GONG-SUK
IPC: H01J1/22
Filed: 1987-07-29
Granted: 1990-05-09
Abstract: The heater of electron gun used for cathode ray tube has core wire consisting of heating part and power supply part, wound around mandrel. The core wire in composed of 96.5-97.5 wt.% tungsten and 2.5-3.5 wt.% rhenium. In the heating part of the core wire the ratio of winding is 160-200 times a centimeter and the pitch of winding is 1.1-1.2 times as long as the diameter.
Patent KR-900007154-B1 (KR)
Title: Automatic forme of and cutter for lining seam working
Inventor: WOO JONG-YOUNG
IPC: A41H43/02
Filed: 1987-09-24
Granted: 1990-09-29
Abstract: The machine is used for sewing lining-cloth which strengthens the waist part of trousers. The machine includes body (1) with upper processing-line support frame (2,2'), lower support frame (3), left legs (4,4'), right legs (5,5'); roller supporter (7,8,9) supporting two feed rollers (6); guide part (21) guiding upper lining cloth (93) ; expanding roll (22) expanding apparel; press iron (11) with humidity supply cover (19); air absorbing chamber (25) with vacuum pump (27); stacking plate (39) for loading cutting cloth, driven by air cylinder; control box (44) operating air cylinders and solenoid valves.
Patent KR-910006155-B1 (KR)
Inventor: UENO SHOJI
IPC: H03M13/00
Filed: 1987-09-29
Granted: 1991-08-16
Abstract: 내용 없음.
Patent KR-900007900-B1 (KR)
Title: X-ray transfer device
Inventor: IKETA MINORU
IPC: H01L21/027
Filed: 1987-11-02
Granted: 1990-10-22
Abstract: The apparatus comprises a soft X-ray generating unit, a gas chamber connected to an X-ray exit window of the soft X-ray generating unit and filled with a gaseous medium having a high transmissivity to the X-ray. The mask is mounted within the gas chamber and a stage is provided for positioning the wafer in opposition to the mask with a small gap. Detecting optics are disposed within the gas chambr for optically picking up image of alignment patterns of the mask and wafer. An imager is disposed within the gas chamber for converting the image of the alignment pattern picked up by the detecting optics into a video signal. A discharging port is provided for withdrawing from the gas chamber the gaseous medium present in the vicinity of the imager.
Patent KR-910001388-B1 (KR)
Inventor: TSUJI YOSIOMI
IPC: E02B7/20
Filed: 1987-11-06
Granted: 1991-03-04
Abstract: 내용 없음.
Patent KR-910005522-B1 (KR)
Title: Magnetic recording device
Inventor: KIM JONG-WAN
IPC: G11B5/02
Filed: 1987-12-04
Granted: 1991-07-31
Abstract: The apparatus combining a video tape  recorder  with  digital autio tape recorder in one body has 4 heads (R,R',L,L') located at opposite position with different azimuth angle on drum between  an upper (69) and a lower drum (70), records and reproduces the  data by operating 4 heads (R,R',L,L') in  order  in  VTR  mode  and  by operating 2 heads (R,L) out of 4 head in  DAT  mode.  The  azimuth angles of 4 heads (R,R',L,L') are +20 deg.C, +6 deg.C, -20  deg.C, -6 deg.C respectively. The winding angle of the tape of  the  drum is about 90 deg.C.
Patent KR-910003645-B1 (KR)
Inventor: TOKAHARA TAKASHI
IPC: F01P11/04
Filed: 1988-01-13
Granted: 1991-06-07
Abstract: 내용 없음.
Patent KR-910002998-B1 (KR)
Inventor: KURIHARA TOSHIYUKI
IPC: H05K13/04
Filed: 1988-02-03
Granted: 1991-05-11
Abstract: 내용 없음.
Patent KR-910000542-B1 (KR)
Title: Inverter
Inventor: CHONG YONG-HO
IPC: H02M1/06
Filed: 1988-06-24
Granted: 1991-01-26
Abstract: The inverter utilizes thyristers and one capacitor  for  four quadrant operation of large capacity motor. The  circuit  includes thyristers  (T11-T16)  for  main  inverter  for   dviving   motor, thyristers (A21-A26) for auxiliary inverter, a capacitor (Cr)  for energy  reproducing  when  line  commutation  is   executed,   and thyrister (A33,A34) and diodes (D31,D32) for circulating current.
Patent KR-940010391-B1 (KR)
Inventor: MURAI SHUSEI
IPC: B41J11/00
Filed: 1988-11-11
Granted: 1994-10-22
Abstract: 내용 없음.
Patent KR-910004465-B1 (KR)
Title: Modified polyester fiber and manufacturing process of thats
Inventor: KIM SI-EUN
IPC: D01F6/62
Filed: 1988-11-18
Granted: 1991-06-29
Abstract: A polyester fiber is produced by  adding  0.5-15  wt.%  metal sulfonate deriv. of formula (I) to  polyester,  and  melt-spinning and  drawing  the  mixt.  The  polyester  is   produced   by   the polymerization of at least 80  mole.%  terephthalic  acid  or  its esters,    and    at    least    80    mole.%      ethyleneglycol, tetramethyleneglycol or 1,4-  cyclohexane  dimethanolinglycol.  In (I), R1-10 is H or C1-20 alkyl; Ar is aromati cresidual gp.; l and m is 1 or 2; i and j is or 1;  n  is  1-10;  Me  is  1-valence  or 2- valence metal; X and X' is ketone, sulfone or C1-5 alkyl;  Y  is OH or halogen. The polyest fiber has a good alkali-resistance.
Patent KR-960002337-B1 (KR)
Title: Device for clamping disc to axial direction tight
Inventor: MANFRED KIRN
IPC: B24B45/00
Filed: 1988-10-20
Granted: 1996-02-16
Abstract: PCT No. PCT/EP88/00015 Sec. 371 Date Jul. 24, 1989 Sec. 102(e) Date Jul. 24, 1989 PCT Filed Jan. 12, 1988 PCT Pub. No. WO88/06075 PCT Pub. Date Aug. 25, 1988.A clamp device for clamping a disc tool to a driven spindle and comprising a clamp nut, a clamp disc, and an arrangement for connecting the clamp disc to the clamp nut and which arrangement includes a ring having an inner track in which a plurality of rolling members are displaceable and are spring biased against respective stops projecting from at least one of the clamp nut and the clamp disc, and which is rotatable against a spring force to release the clamp disc from the clamp nut.
Patent KR-960015145-B1 (KR)
Inventor: MICHEL PRASSAS
IPC: C03C3/093
Filed: 1989-01-26
Granted: 1996-11-01
Abstract: 내용없음.